/*
 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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 */

package javax.xml.ws.handler.soap;

import javax.xml.namespace.QName;
import javax.xml.ws.handler.Handler;
import java.util.Set;

/**
 * The <code>SOAPHandler</code> class extends <code>Handler</code>
 * to provide typesafety for the message context parameter and add a method
 * to obtain access to the headers that may be processed by the handler.
 *
 * @since JAX-WS 2.0
 **/
public interface SOAPHandler<T extends SOAPMessageContext>
    extends Handler<T> {

  /**
   * Gets the header blocks that can be processed by this Handler
   * instance.
   *
   * @return Set of <code>QNames</code> of header blocks processed by this handler instance.
   * <code>QName</code> is the qualified name of the outermost element of the Header block.
   **/
  Set<QName> getHeaders();
}
